diff --git a/paramecio/cromosoma/corefields.py b/paramecio/cromosoma/corefields.py
index 1976b44..5dee813 100644
--- a/paramecio/cromosoma/corefields.py
+++ b/paramecio/cromosoma/corefields.py
@@ -9,21 +9,21 @@ class IntegerField(PhangoField):
     
     def check(self, value):
         
-        self.error=None
+        self.error=False
         self.txt_error=''
         
         try:
         
             value=str(int(value))
         
-            if value==0 and self.required==True:
+            if value=="0" and self.required==True:
                 self.txt_error="The value is zero"
                 self.error=True
         except:
             
-            value=""
+            value="0"
             self.error=True
-
+        
         return value
     
     def get_type_sql(self):
@@ -38,6 +38,11 @@ class TextField(PhangoField):
     
     def __init__(self, name, required=False):
         super().__init__(name, 11, required)
+        
+    #def check(self, value):
+        
+        #value=super().check(value).replace('"', '&quot;').replace('<', '&lt;').replace('
+        
     
     def get_type_sql(self):
 
diff --git a/paramecio/modules/admin/admin/ausers.py b/paramecio/modules/admin/admin/ausers.py
index ef8926d..db1845e 100644
--- a/paramecio/modules/admin/admin/ausers.py
+++ b/paramecio/modules/admin/admin/ausers.py
@@ -27,6 +27,8 @@ def admin(t):
     
     admin.list.search_fields=['username']
     
+    admin.arr_fields_edit=['username', 'password', 'email', 'privileges']
+    
     #admin.list.limit_pages=5
     
     return admin.show()
\ No newline at end of file
diff --git a/tests/fieldstest.py b/tests/fieldstest.py
index 06959f6..c716751 100644
--- a/tests/fieldstest.py
+++ b/tests/fieldstest.py
@@ -23,4 +23,21 @@ class TestFieldMethods(unittest.TestCase):
         
         self.assertEqual(value, "injection_\\'")
         
+    def test_integerfield(self):
+        
+        integerfield=corefields.IntegerField('example', 11)
+        
+        integerfield.required=True
+        
+        integerfield.check(0)
+        
+        self.assertTrue(integerfield.error)
+        
+        integerfield.check('25')
+        
+        self.assertFalse(integerfield.error)
+        
+        value=integerfield.check("25'")
+        
+        self.assertEqual(value, "0")
         
\ No newline at end of file